CN2789258Y

CN2789258Y - Biomass gasification furnace

Info

Publication number: CN2789258Y
Application number: CN 200520050979
Authority: CN
Inventors: 董颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-31
Filing date: 2005-05-31
Publication date: 2006-06-21
Anticipated expiration: 2015-05-31

Abstract

The utility model relates to a biomass gasification furnace which mainly solves the technical problems of incomplete conversion, difficult ignition, etc. of an existing gasification furnace. A hearth (12) is formed by the periphery of an upper and a lower sandwich structures which are isolated, wherein the upper sandwich layer is a water storage chamber (1); the lower sandwich layer is a preheating chamber (3). An igniting pipe (4) which penetrates through the hearth (12) and the preheating chamber (3) is arranged; a gasifying agent preheating pipe (5) penetrating through the hearth is controlled by a flow meter (7); a flow meter (7) is connected between the water storage chamber (1) and the preheating pipe (5); the other end of the preheating pipe (5) is communicated with the preheating chamber (3); a hollow screw rod (6) is arranged between the inner and the outer walls of the lower part; a gas pipe (10) is connected with the hearth (12) and a purifying device. The utility model has the advantages of high automatization and convenient use.

Description

Biomass gasifying furnace

Technical field

The utility model relates to a kind of device, especially the biomass gasifying furnace that can light a fire automatically.

Background technology

Biomass gasifying furnace is a kind of equipment that biological anoxycausis produces inflammable gas.At present, the biomass gasifying furnace of selling on the market is the vapourizing furnace of fuel with bavin, straw etc. especially, all can only burn down a part of raw material; Slag is charcoal or the siccative that varies in size, and can not be gasified totally.Existing simultaneously biomass gasifying furnace also exists igniting difficult, sootiness operator, easy carbon monoxide poisoning when lighting.Can not reach environmental requirement, also just give to promote the use of and brought restriction.

Summary of the invention

The biomass gasifying furnace of the environment-friendly type that the purpose of this utility model provides a kind of automatic igniting, can be gasified totally.

The technical scheme that its technical problem that solves the utility model adopts is:

Isolated up and down sandwich structure surrounds burner hearth 12, the top interlayer is retaining chamber 1, the bottom interlayer is a preheating chamber 3, the preheating tube 5 that passes burner hearth 12 is installed in the preheating chamber 3, ignitron 4 passes burner hearth, the heat-generating pipe 20 that dress links to each other with power supply in the ignitron 4, water-in 2 is located at the bottom of retaining chamber 1, water outlet 11 is located at the top of retaining chamber 1, connect under meter 7 between retaining chamber 1 and the preheating tube 5, empty screw rod 6 in having between the inside and outside wall of preheating chamber 3 bottoms, the top of burner hearth connects gas line 10, and gas line 10 links to each other with refining plant.

The upper strata of refining plant is a sulphur removal layer 12, and glass fibre 13 is equipped with in the middle level, and the below of glass fibre 13 is slotted plates 14, and the below of slotted plate 14 connects gas line 10, also is connected with a water monitor 16, and wash water valve 15 is established in the bottom.

In the interior empty screw rod 6 passage 17 is arranged, hole 18 communicates with preheating chamber 3, and the other end outlet 19 communicates downwards and with burner hearth 12.

The beneficial effects of the utility model are, water through preheating tube and preheating chamber after, become high-temperature water vapor and with the air thorough mixing, entering burner hearth can fully react with biomass, improves transformation efficiency; Owing to set up ignitron, can be when making igniting by sootiness, solved difficult, the phenomenon such as people's carbon monoxide poisoning when using of igniting, simple to operate.Add refining plant, make the combustion gas cleanliness without any pollution of producing.

Relatively prove by experiment: consume under the situation of identical weight fuel, this vapourizing furnace gas production rate is higher than 2-3 times of existing vapourizing furnace, moreover, low to demanded fuel, as long as energy incendiary material, thereby fuel source is widely arranged, can make fuel as firewood, straw, straw, husk, wood chip, coal etc. and various combustiblematerials.In burner hearth the chemical reaction that produces is had: carbon and water produce carbon monoxide and hydrogen under the condition of high temperature; Carbon and oxygen can produce carbon monoxide under the incomplete combustion state.

Description of drawings

Fig. 1 is a synoptic diagram of the present utility model.

Fig. 2 is a kind of distribution mode synoptic diagram of ignitron and preheating tube and interior empty screw rod.

Fig. 3 is interior empty screw rod synoptic diagram.

Among the figure: 1. retaining chamber, 2. water-in, 3. preheating chamber, 4. ignitron, 5 water preheat pipes., 6. interior empty screw rod, 7. under meter, 8. ash output hole, 9. inlet mouth, 10. air outlet, 11. water outlet 12. sulphur removal layers, 13. glass layers, 14. slotted plates, 15. wash water valves, 16 water monitors.17 passages, 18 holes, 19 outlets, 20 heat-generating pipes.

Embodiment

By Fig. 1 to Fig. 2 as can be known, the utility model profile is cylindrical, and isolated up and down sandwich structure crosses burner hearth 12, the top interlayer is retaining chamber 1, and the bottom interlayer is a preheating chamber 3, and the preheating tube 5 that passes burner hearth 12 is installed in the preheating chamber 3, ignitron 4 passes burner hearth, interior dress heat-generating pipe.Ignitron 4 and preheating tube are formed a grate.Prosopyle 2 is located at the bottom of retaining chamber 1, and water outlet 11 is located at the top of retaining chamber 1, connects under meter 7 between retaining chamber 1 and the preheating chamber 3, empty screw rod 6 in symmetry is installed between the inside and outside wall of preheating chamber 3 bottoms.Have passage 17, one ends to communicate with preheating chamber 3 in the interior empty screw rod 6, the other end outlet communicates downwards and with burner hearth 12.Production well 10 is located at the top of body of heater.

The top of burner hearth connects gas line 10, and gas line 10 links to each other with refining plant.The upper strata of refining plant is a sulphur removal layer 12, glass fibre 13 is equipped with in the middle level, the below of glass fibre 13 is slotted plates 14, the below of slotted plate 14 connects gas line 10, also be connected with a water monitor 16, as silicone tube with a band iron wire, up lift a bit then water level rising, water level reduces toward pressing down a bit then.Wash water valve 15 is established in the bottom.

Heat-generating pipes 20 in the ignitron 4 directly do not contact with fuel, and heat-generating pipe rises to Celsius 500 when spending with the ignitron temperature, can light the interior biomaterial of burner hearth.

During use: at first turn on the power switch, when heat-generating pipe 20 generates heat to the 500 degree left and right sides, ignitron 4 igniting.Simultaneously gas blower is by inlet mouth 9 oxygen supplys, oxygen through preheating chamber 3 preheatings after, 18 enter burner hearth 12 to outlet 19 from the hole, and combustion reactions takes place; Thereby solved manual ignition's inconvenience, realized igniting automatically.Shut power supply after lighting material, can take out heat-generating pipe 20 at any time, be beneficial to its permanent use.Open under meter 7 at the same time, and control flow well, water enters two pipelines of preheating tube 5, during preheating tube 5 process burner hearths 12, by heat, the water of the inside becomes water vapour, water vapour enters preheating chamber 3 back and continues preheatings, and enters burner hearth by hole 18 to outlet 19 after the air mixed and reacts.Because outlet 19 is downward installations, from burner hearth bottom, has guaranteed the thickness of combustion gasification layer during combustion gasification, can allow material be gasified totally; Solved the bad defect of traditional vapourizing furnace gasification result, traditional vapourizing furnace bottom is remaining to be the charcoal slag, also can be gasified totally with charcoal independent behind this device, exceeds 2～3 efficiency-timed rates than existing stove.Because of the installation of under meter, it is readable, controlled that the water amount of vaporization has been accomplished, prevented to fall when vapourizing furnace moisturizing in the past is too much the phenomenon of end furnace temperature or spray fire extinguishing, and moisturizing is the not good situation of gasification result after a little while.

Behind the first class purification of combustion gas through the gas line 10 of filled glass fiber, arrive the cleaning apparatus below, there is purifying waste water of certain altitude the below of cleaning apparatus, this is a secondary purification, purify through carrying out level Four by glass fibre 13 after three grades of purifications of slotted plate 14, carry out desulfurizing and purifying by desulfurization layer 12 at last, obtain comparatively purified combustion gas.

Claims

1, a kind of biomass gasifying furnace, it is characterized in that: isolated up and down sandwich structure surrounds burner hearth (12), the top interlayer is retaining chamber (1), the bottom interlayer is preheating chamber (3), the preheating tube (5) that passes burner hearth (12) is installed in the preheating chamber (3), ignitron (4) passes burner hearth, dress heat-generating pipe (20) in the ignitron (4), water-in (2) is located at the bottom of retaining chamber (1), water outlet (11) is located at the top of retaining chamber (1), connects under meter (7) between retaining chamber (1) and the preheating tube (5), empty screw rod (6) in having between the inside and outside wall of preheating chamber (3) bottom, the top of burner hearth (12) connects gas line (10), and gas line (10) links to each other with refining plant.

2, the described biomass gasifying furnace of root a tree name claim 1, it is characterized in that: the upper strata of refining plant is sulphur removal layer (12), glass fibre (13) is equipped with in the middle level, the below of glass fibre (13) is slotted plate (14), the below of slotted plate (14) connects gas line (10) and water monitor (16) respectively, and wash water valve (15) is located at the bottom.

3, the described biomass gasifying furnace of root a tree name claim 1 is characterized in that: passage (17) is arranged in the interior empty screw rod (6), and hole (18) communicate with preheating chamber (3), and another outlet (19) communicates downwards and with burner hearth (12).